Insole



H. McMASTER.

INSOLE, APPLICATION FILED FEB. 1. 1919.

Patented June 8, 1920..

8 n ma "01 3%. xwmgrex- Wilma I HENRY MCMASTER, OF HIGHLAND PARK,MICHIGAN, ASSIGNOR OF ONE-HALF 1'0 JASPER W. DAVIS, OF DETRQIT,MICHIGAN.

INSOLE.

Application filed February T 0 uZZ 'UFIVLOIIL it may concern:

Be it known that l, HENRY MoMAs'rnR, a citizen of the United States ofAmerica, residing at Highland Park, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in Insoles,of which thefollowing is a specification, reference being had therein tothe accompanying drawings. I

In uniting the uppers to the soles of shoes, there is usually formed aridge within the shoe along the meeting. angle of the upper and sole,particularly in welt work, and in practically all constructions afterconsiderable wear, this edge portion of the sole is considerably higherthan the central portion. To give a smooth inner surface, a sock liningor insole is usually provided, but after a time the margin of thisinsole will our]. upwardly and inwardly due to the raised portion of thesole and to the dampness of the under side of this margin caused by lackof ventilation. This inwardly curling edge often causes great discomfortto the wearer.

Separate, detachable insoles as commonly constructed, will, in a likemanner curl upwardly and inwardly along their margins, due to the samecauses, and it is the object of this invention to provide an insole orsock lining which is so constructed as to prevent this curling of itsedge portion and will always present a smooth upper surface within theshoe across the entire width of the sole.

With these and other ends in view the invention consists in the mattershereinafter described and more particularly pointed out in the appendedclaim reference being had to the accompanying drawing, in which Figure 1is an inverted plan view of an insole or sock lining embodying theinvention;

Fig. 2 is a transverse section of the same substantially on the line ofFig. 1;

Fig. 3 is a perspective view of the same with the upper ply turned backto more clearly show the construction;

Fig. 4 is an enlarged transverse section of a shoe sole with the uppersecured in place thereon in the usual manner, and a detachable insoleembodying the invention in place upon the shoe insole within the shoe;

Fig. 5 is a perspective view of a modified construction of insoleshowing the bottom facing of the insole detached and turnedSpecification of Letters Jiatent.

Patented June 8, 1920.

7, 1919. Serial No. 275,535.

back to disclose a padding interposed between this facing and the upperportion or body of the insole; and

Fig. 6 is a transverse section of a shoe with the modified constructionof insole shown in Fig. 5 applied thereto.

The socklining or insole embodyin this invention consists of a sheet orbody of leather or other suitable material which is cut so that itsmargin will conform closely to the shape of the sole of the shoe withinthe upperthereof, with the edge of the insole lying close to the wall ofthe upper along the entire length thereof. A marginal portion of thisbody A is cut away as at 1 for a distance inwardly from the edge of thebody at the lower or underside thereof, or the body may be formed of twoor more layers of material 2 and 3 as illustrated in Fig. 2, the lowerply 3 having the same outline as the upper ply 2 but of less width sothat the edge channel or groove 1 is provided in the lower face of thebody along its edge, leaving the thin edge portion 4 of the layer 2 tooverlie the welt 5 and attached and inturned edge of the upper 6 orother ridge or projection which may be formed by the attachment of theupper to the sole of the shoe. The ply 3 forms a thickened centralportion for the body so as to hold the ply 2 level with its thin edgeportions l adjacent the wall of the upper, the channel or groove 1forming, when the insole is in place within the shoe, an air channel 7all along the margin of the insole adjacent the upper. The pressure inuse, comes upon the central portion of the insole and because of thethin lip or margin 4c with the open channel beneath it, there is notendency of the lip 4: to curl upwardly and inwardly, and this curlingis also prevented by the channel 7 which forms an air passage providingventilation to keep the underside of this thin lip 4 from becoming moremoist than the upper surface thereof.

As shown in Figs. 5 and 6, the central portion of the body of the insolemay be increased in thickness by providing a padr8 therein of anysuitable material such as felt, this pad being interposed between acomparatively thick upper ply 9 and a thin lower ply 10 or surfacingwhich is of lesser width than the ply 9 to provide a marginal groove 11along the underside of the insole. This marginal groove may extend onlyr margin presenting a COIltIIlUOHS smooth upalong the edge of the toeportion of the insole, as shown, or it may extend along the entiremargin thereof.

A sock lining or insole constructed as described, may be incorporated inthe shoe it- Self, being secured to the sole in any desired: manner orit may be used as a separate detachable insole which may be applied toany shoe with the thick central portion per surface eXtendi-ng-acrosstheentire width of the shoe,=w1th anopen' V6I'1t1lat'1 Ilg" Ol1LI1 thewall'of the upper.

nel beneath t his thin lip" or margin along 1 Obviously, changes may bemade in the 7 construction of the device without departing from thespirit of the invention andI-do not therefore wish to limit myself tothe spe cific construction and arrangement shown.

WhatI claim is: g r A separate detachable inner sole comprising a bodyformed ot upper and lower thicknesses of material with a paddinginterposed between said i thicknesses, the lower thickness being of lesswidth and length than the upper thickness to provide a margin of asingle thickness andrt'he area of the padding being less than the areaof the lower thickness of material to providea cushion at the central"portion of thebody only, said paddinghaving a thin margin and said upperand lower filllOkllfiSSQS of material being se cured together alongtheir contacting mar ginalportions outside of said padding.

ln testimony whereof I aiiix' my signature in the presence of two 1witnesses.

I HENRY M'CMASTER.

Wit'neSsesz V I Enwrs E. FLANDERS, ANNA" M'. Donn,

